With the ongoing liberalization and integration of European energy markets and the increasing worries about security of supply, the need for thorough economic analysis of electricity markets is growing. Elmar is a model for the European electricity market, taking into account imperfect...

This paper analyses the welfare effects of vertical integration of networks and trade in energy markets. Vertical integration reduces the effect of double marginalisation, thus increasing welfare. On the other hand, vertical integration hinders equal competition, rendering the vertically...